650  
CDUS46 KMTR 170827  
CLISFO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
127 AM PDT TUE SEP 17 2024  
   
...............................
 
 
   
..THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 16 2024
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1927 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 67 2:55 PM 90 1968 75 -8 73  
MINIMUM 54 6:26 AM 49 2006 56 -2 63  
AVERAGE 61 66 -5 68  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.88 1989 0.00 0.00 0.00  
MONTH TO DATE 0.00 0.02 -0.02 T  
SINCE OCT 1 20.23 19.59 0.64 31.42  
SINCE JAN 1 14.90 12.62 2.28 20.17  
 
SNOWFALL (IN)  
YESTERDAY MM 0.0  
MONTH TO DATE T  
SINCE SEP 1 T  
SINCE JUL 1 T  
 
DEGREE DAYS  
HEATING  
YESTERDAY 4 1 3 0  
MONTH TO DATE 42 18 24 0  
SINCE SEP 1 42 18 24 0  
SINCE JUL 1 172 120 52 47  
 
COOLING  
YESTERDAY 0 2 -2 3  
MONTH TO DATE 3 32 -29 25  
SINCE SEP 1 3 32 -29 25  
SINCE JAN 1 77 142 -65 164    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 10 RESULTANT WIND DIRECTION W (280)  
HIGHEST WIND SPEED 32 HIGHEST WIND DIRECTION W (270)  
HIGHEST GUST SPEED 43 HIGHEST GUST DIRECTION W (280)  
AVERAGE WIND SPEED 12.1  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 89 3:00 AM  
LOWEST 63 3:00 PM  
AVERAGE 76  
   
......................................................
 
 
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 75 94 1984  
MINIMUM TEMPERATURE (F) 56 50 1945  
1946  
1988  
 
SUNRISE AND SUNSET  
SEPTEMBER 17 2024.....SUNRISE 6:54 AM PDT SUNSET 7:13 PM PDT  
SEPTEMBER 18 2024.....SUNRISE 6:55 AM PDT SUNSET 7:12 PM PDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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